Burbank Water and Power Validates ESS Iron Flow Battery in Utility Test
Event summary
- Burbank Water and Power completed a 21-month evaluation of ESS’s Iron Flow Battery system, concluding the technology is viable for utility applications.
- The project, under APPA’s Demonstration of Energy & Efficiency Developments program, validated the battery’s long-duration performance and safety.
- ESS’s system, co-located with solar, demonstrated non-flammable chemistry using iron, salt, and water, with domestic manufacturing.
- Utility personnel were trained on operation and maintenance, supporting broader education on iron flow battery technology.
The big picture
ESS’s successful validation by Burbank Water and Power underscores the growing demand for long-duration energy storage solutions that support grid reliability and renewable integration. The project aligns with broader industry trends toward safer, sustainable, and domestically manufactured energy storage alternatives. ESS’s focus on utility-scale applications positions it to capitalize on the increasing need for energy resilience and renewable energy integration.
What we're watching
- Commercial Momentum
- Whether ESS can sustain its commercial momentum with ongoing projects like Project New Horizon and collaborations with key partners.
- Technology Adoption
- The pace at which utilities adopt long-duration energy storage solutions as alternatives to lithium-ion batteries.
- Regulatory Support
- How regulatory frameworks will evolve to support the deployment of iron flow battery technology in utility environments.
Related topics